Tool bit holder

Details Tool bit holder Tool bit holder

1998-08-05

2000-05-16

Bishop, Steven C.

Chucks or sockets

Socket type

Spring biased jaws

279 463, 279 54, 408240, B23B 3120

Patent

active

060625740

ABSTRACT:
A tool bit holder having a collet nut engageable with a rotary and/or reciprocating output shaft having a hollow free end with a collet, having jaws with respective head and shank portions, disposed in the hollow interior of the collet nut and an annular expansion insert member having an aperture of a diameter greater than the diameter of the hollow free end of the tool output shaft through which the shank portion of the collet jaws extend, with the expansion insert member having a proximal end engageable with the free end of the output shaft and a distal end engageable with the heads of the collet jaws, provides improved capacity for the tool bit holder to accommodate a greater range of tool bit sizes.

REFERENCES:
patent: 2176071 (1939-10-01), Hall
patent: 2211216 (1940-08-01), Oster

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